Supplemental bed and guide attachment.



PATENTED DEC. 18, 1906.

A. F. HBOKEL.

SUPPLEMENTAL BED AND GUIDE ATTACHMENT.

APPLIUATION FILED JUNE 30, 1908.

2 SHEETS-SHEET 1.

INVENTOR,

A TTORNE 5 THE. NORRIS PETERS cu., wAsmNcroN. D c.

PATENT OFFICE.

ALBERT F. HEOKEL, OF GALVESTON, TEXAS.

SUPPLEMENTAL BED AND GUIDE ATTACHMENT.

Specification of Letters Patent.

. Patented Dec. 18, 1906.

Application filed June 30, 1906. Serial No. 324,214.

To KI/ZZ whom, it may concern:

Be it known that I, ALBERT F. HEOKEL, a citizen of the United States, residing at Galveston, in the county of Galveston and State of Texas, have invented a new and useful Supplemental Bed and Guide Attachment, of which the following is a specification.

This invention relates to a combined supplemental bed and guide attachment for woodworking-machines and is particularly designed for use in holding stock at a desired angle to the cutting tool or tools of the machine, so as to produce a predetermined taper or bevel.

. The object of the invention is to provide a supplemental bed which will support stock of different lengths and accurately guide it beneath the cutting-tool without requiring the exercise of any care by the operator in order to insure the proper movement of the stock while being cut.

The device is particularly designed for holding long lengths of stock, such as used in the formation of the staves or members of columns, and in the production of door and window jambs, &c.

I Vith the above and other objects in view the invention consists of certain novel features of construction and combinations of parts, which will be hereinafter more fully described, and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings, Figure 1 is a front elevation of a portion of a machine having this improved supplemental bed connected thereto. Fig. 2 is a plan view of a portion of said machine, showing the bed in position thereon and held at an angle to the fixed bed'of the machine, the direction of the cut to be made in the stock being indicated by arrows. Fig. v3 is an enlarged longitudinal section through a portion of the supplemental bed. Fig. 4 is a transverse section therethrough, and Fig. 5 is an enlarged detail view of a portion of the guide-chain.

Referring to the figures by characters of reference, 1 is the integral bed of a woodworking-machine of ordinary construction,

said machine having a mandrel 2, adapted to be driven in any desired manner and carrying a suitable cutting-tool, such as a saw 3. These parts may all be of any ordinary or preferred construction.

The invention constituting the subject matter of the present case consists of an attachment for use in connection with such a machine and comprises an elongated supplemental bed 4, which is preferably constructed of wood and of any desired proportions. Grooves 5 and 6 are formed longitudinally within the upper and lower faces of the bed 4 and extend a desired distance from one end thereof. These grooves communicate at their inner ends through a slot or opening 7, extending transversely through the bed, and a sprocket 8 is mounted to rotate withinthis opening and is journaled on a short shaft 9, which extends transversely through the bed and is supported at its ends within wearplates 10, fastened to the sides of the bed 4. Arms 11 extend from the sides of the bed adjacent the outer ends of the grooves 5 and 6, and the free ends of these arms are slotted longitudinally, as shown at 12, to form bearings for a shaft 13,. on which is mounted a sprocket 14.

A longitudinally-grooved wear-plate 15 is secured within the groove 5, and an endless chain 16 is arranged to travel within this grooved plate and also within the groove 6, said chain extending over the sprockets 8 and 14. The thickness of the chain is such that the same will not project above theupper face of the bed 4; but at desired intervals certain lengths of the chain 16 are formed with series of saw-teeth 17, which project short distances above the bed 4. Oppositely-disposed angular supporting-plates 18 are preferably fastened within the lower groove 6 for the purpose of supporting that portion of the chain extending under the bed 4, and these plates as well as the plate 15 may be secured in position in any preferred manner, as by means of rivets 19. Clamping-screws 20 engage the bed 4, and the heads 21 thereof support clamping-plates 22, having upturned ends 23, adapted to bear upon the lower face of the base of the bed 4. A laterally-extending support or shelf 24 is preferably secured to the inner edge of the bed 4 at one end, so that when said bed is in desired position upon the machine the shelf will be disposed at one side of the machine. A setting-strip 25 is bolted or otherwise fastened on the shelf and is adapted to be adjusted to a desired angle, so that the stock 26 may be placed at the proper angle to the saw when first positioned upon the bed.

In using this supplemental bed the same is secured upon the bed 1 with the guide-chain reserve the right to make such changes as 16 parallel with the plane occupied by the saw 3. The setting-strip 25 is then secured at a desired angle to the longitudinal center of the supplemental bed, so that the stock 26 when placed against the guide will be dis posed at an angle to the supplemental bed. The weight of the stock will cause the teeth 17 to bite thereinto, and as the stock is fed toward the saw by the rollers 27 the chain 16 will guide the stock and keep it at the same angle to the saw as that assumed by the stock when it was first placed against the settingstrip 25. Said stock will therefore cut diagonally, so that tapered strips will be produced. Of course the taper of the strips is regulated by the angle at which the setting strip 25 is secured. The teeth 17 will obvi ously maintain the stock constantly at the same, angle to the supplemental bed at all times during the passage of the stock under the saw.

The entire attachment is very simple and inexpensive in construction, can be readily applied, and will guide the stock practically Without injury thereto. The guide-chain is moved solely by the stock, and therefore the teeth are subjected to no strain except that exerted by the pressure of the stock thereagainst. These teeth are of such small proportions as to leave the stock practically unmarred thereby.

The preferred form of the invention has been set forth in the foregoing description; but I do not limit myself thereto, as I am aware that modifications may be made there in without departing from the spirit or sacrificing the advantages thereof, and I therefore fairly fall within the scope of the claims.

What is claimed is-- 1. The combination with a woodworking- Inachine comprising a bed, a feed-roller disposed thereabove, and a cutting-tool of a supplemental bed mounted upon the bed of the machine, clamping devices carried by the supplemental bed for engaging the bed of the machine, an endless chain movably mounted within the supplemental bed, and stock-engaging devices extending from the chain and above the supplemental bed.

2. An attachment for woodworking-machines comprising a supplemental bed, an endless chain movably mounted thereon, stock-engaging devices extending from the chain and adapted to be actuated by the stock, and a setting-strip adjustably fastened to one end portion of the supplemental bed,

and at one side of the guide-chain.

3. An attachment for woodworking-machines comprising a supplemental bed, an endless chain mounted thereon and extending longitudinally thereof, devices projecting from the chain and adapted to be engaged and actuated by stock moving upon the supplemental bed, a shelf extending from one end portion of the supplemental bed, and a setting-strip adjustably mounted upon said shelf.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

ALBERT r. HECKEL. Witnesses r J. A. BLACK,

M. P. CUENOD. 

